There's no such thing as useless knowledge. You never know what doors it's going to open up for you.

Knowledge is the key that unlocks all the doors. You can be green-skinned with yellow polka dots and come from Mars, but if you have knowledge that people need, instead of beating you, they'll beat a path to your door.

Having grown up in dire poor, the thing that I hated the most in life was poverty.

There comes a time when people with values simply have to stand up. Think about Nazi, Germany. Most of those people did not believe in what Hitler was doing.

I don't worry about things that aren't important.

I've had experiences in my life that leave no doubt in my mind about the fact that God exists. I'm quite willing to debate people who don't think so because I want them to explain to me how did our solar system get so organized and how is the universe so complex and yet well-organized that we can predict 70 years hence when a comet is coming?

You need an incredible amount of self-confidence to go digging around in someone's brain.